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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

Menu Logo Principal AgroParisTech université Paris-Saclay

Welcome to ECOSYS

UMR ECOSYS - Ecologie fonctionnelle et écotoxicologie des agroécosystèmes

Research scientist offering

Micro-scale dynamics of organic matter in soil

The French National Research Institute for Agriculture, Food, and the Environment INRAE is recruiting a research scientist by open competition (permanent position) : "Micro-scale dynamics of organic matter in soil"

The position is open at Ecosys Lab in Paris-Saclay University (Palaiseau, in Paris Area), which conducts research on the functioning of agroecosystems taking into account biogeochemical processes and mass and energy fluxes in interaction with living organisms and their environment. The work will be part of the research themes of the Soil team that focus on the biogeochemistry of organic matter and organic contaminants in soils.

The main objective will be to study the impact of soil spatial organization at the microscopic scale, on the dynamic of organic substrates. The research scientist will focus on the decomposition of organic matter and the fate of organic contaminants based on cutting-edges 2D-3D visualization tools to account for both the soil structure and the location of the main organic compounds and living organisms in the soil. More precisely, he/she will seek to identify the microscopic descriptors available from images that explain the fluxes observed at the macroscopic scale. He/she will contribute to improving the knowledge of the degradation and persistence of organic matter and contaminants in soils. It will also improve models of the fate of organic contaminants and carbon sequestration in soils within the context of climate change or changing agricultural practices. He/she will benefit from the multidisciplinary environment (biogeochemistry, soil ecology, soil physics) and the wide range of experimental facilities, tools and approaches (isotopic biogeochemistry techniques, modelling, etc.) within Ecosys Lab and among the diversity of its partners.

Required Skills : In-depth skills in environmental sciences in the fields of biogeochemistry, physical chemistry or biology applied to environmental issues are highly recommended. A taste for and experience in processing spatial data, for example through image analysis, would be highly recommended. Knowledge of soils would be a plus.

For more details and to apply, please go to :

We are hosting a webinar to answer your questions:

The deadline to apply for this competition is March 8, 2022.

Best Regards,

Patricia Garnier ( and Valérie Pot (